Improvement in rotary engines



T.- C. ORR.

ROTARY-ENGINE.

No.176,545. Patented Apr'1125.'1876.

WITNESSES INVENTUB 6% @w 7 60% BY N, PETERS. PHOTOJJTHOGRAPHER,WASHINGTON, D O.

UNITED STATES PATENT OFFICE,

THOMAS C. ORR, OF ENFIELD, ILLINOIS.

IMPROVEMENT IN ROTARY ENGINES.

Specification forming part of Letters Patent Nol'76,545, dated April 25,1876; application filed March 13, 1876.

is used with each piston to keep it out when steam is not acting on it.

Figure 1 is a side elevation of my improved wheel with one side of thecase oli' anda part in section, and Fig. 2 is a transverse section,taken on line a; m, Fig. 1.

Similar letters of reference indicate corresponding parts.

A is the case. -B is the hub; (J, the pistons; D, the abutment; E, theinlet F, the exhaust; G, steam-passage into cylinder H behind thepiston, to force it out, and I, spring to contract the piston when steamis not acting. The incline of the abutment is very gradual, to press thepistons back; but the opposite side is abrupt, to let them take steamimmediately after passing it: The rim J of the hub is packed steam-tightbetween the two heads of the cylinders.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination of case A, hub B, springpistons O I,and abutment D, with the cylinder H, steam being allowed to enter at E,exhaust at F, and reach cylinder through passage G, as shown anddescribed.

THOMAS C. ORR. Witnesses:

B. B. MILLER, JAMES H. GowDY.

